jennison



N-PETEHS, PROT LITHOGRAPHER WASH MGTON D C UNITED sTATEs PATENT oEEIoE.

WM. H. JENNIsoN, oE NEW YORK, N. v ,.AssIGNoR To WM. KUMBEL. n

RIVETING LEATHER BANDS.

Specification of Letters lPatentNo. 5,246, dated August 14, 184:7.

v To all whom t may concern.'

Be it knoWn that I, WM. H. JENNIsoN,v

of the city and State of New York, haveinvented a new Mode or FormforMaking Rivets for Machine Leather Banding and other Purposes; and I dohereby vvdeclare that the following isa full and exact description. 1 l

The nature of my invention consists in making the head of the rivetconcave and the` shank oval, as exhibited in, the annexed drawingsfor-ming a part of this specification.

Figure 1, represents the heads of the improved rivets in the joint orsplice of theV views of the common shank. Figs. 6( and 7 Y cut sectionof the flat and round head rivet with bur. Fig. 6 flat head rivet. Fig.7 round head rivet. Fig. 8, bur for common rivets, Figs. 9, and 10, viewof the flat and round head rivet inserted in the common band. Figs. 1l,Vand l2, out section of the above.

The advantage of the improved form over those in use Will be understoodfrom the folf Y lowingfacts, the head being concave instead of -flat orconvex, presents less surface V3 v to the pulley thereby preventing thegreat inconvenience of ythe band slipping. The oval shank being insertedAin an oval hole the largest diameter of whichv .being in a line Withthe band,v admits of placing a greater. number in lineV andk as onethird less leather is removed for theirV insertion they afford increasedstrength to the band.V In riveting, a convex projection from the rivetinstake or plate conforming to the concavlty of the head of the rivetisused. i v

To enable others skilled in the artito make and use my invention, I Willdescribe the i mode. Y

I construct male and female dies conform# ing to the concave head andoval shank of the rivet, in thesame manneras those used for dieing upthe common kind.

1What I claim as my lnvention and desire to secure by Letters Patent is-'f The abovedescribed form of rivet in comf bination with and forthepurpose of unit'- Y ing leather belts, substantially. as described,

which I call the concave head andk oval` WM. D. WATERMAN, P. W. KUMBEL.

